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Coexistence of reef organisms in the Abrolhos Archipelago, Brazil

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dc.creatorLins de Barros, Mónica M.
dc.creatorCastro, Clovis B.
dc.creatorPires, Débora O.
dc.creatorSegal, Bárbara
dc.date2015-04-29
dc.date.accessioned2016-05-03T15:27:58Z
dc.date.available2016-05-03T15:27:58Z
dc.descriptionThe first study on coexistence of reef benthic organisms in Brazilian coral reefs was done in three localities of the Abrolhos Archipelago. Organisms were recorded in concentric circle samples (10 and 20 cm in diameter) randomly laid on transects. Type and frequency of “coexistence events” between pairs of organisms were determined. Most frequent organisms (massive and branched coralline algae, Favia gravida, and Agaricia agaricites) also had many significant positive coexistence events. These results might be related to the abundances of these organisms. The most frequent coral (Siderastrea stellata), however, exhibited only a few significant coexistence events (9% of 32 tests). Since the great majority of events were positive, and since there was high variation in the species/groups involved in significant events in different localities, benthic communities of Abrolhos Archipelago may well be structured primarily by abiotic rather than biotic factors.en-US
dc.descriptionSe hizo el primer estudio de coexistencia de organismos bénticos de arrecifes brasileños en tres localidades del Archipiélago de Abrolhos, registrando la presencia de organismos en círculos de 10 y 20 cm de diametro, distribuidos al azar en transectos. La mayoría de los organismo frecuentes (algas coralinas macizas y ramificadas, Favia gravida y Agaricia agaricites) mostraron la más alta “coexistencia positiva”, tal vez por su abundancia. El coral más frecuente (Siderastrea stellata), sin embargo, mostró apenas algunos eventos de coexistencia significativos (9% de 32 ensayos). Debido a que la mayor parte de los eventos fue positiva, y considerando que existe una alta variabilidad en las interacciones significativas en diferentes localidades, las comunidades bénticas del Archipiélago de Abrolhos pueden haber sido estructuradas principalmente por factores abióticos, mas que por factores bióticos.es-ES
dc.formatapplication/pdf
dc.identifierhttp://revistas.ucr.ac.cr/index.php/rbt/article/view/18888
dc.identifier.urihttps://hdl.handle.net/10669/26284
dc.languageeng
dc.publisherUniversidad de Costa Ricaen-US
dc.rightsacceso abierto
dc.sourceRevista de Biología Tropical/International Journal of Tropical Biology and Conservation; Vol. 48 (4) December 2000; 741-747en-US
dc.sourceRevista de Biología Tropical/International Journal of Tropical Biology and Conservation; Vol. 48 (4) December 2000; 741-747es-ES
dc.sourceRevista Biología Tropical; Vol. 48 (4) December 2000; 741-747pt-PT
dc.source2215-2075
dc.source0034-7744
dc.subjectBrazilen-US
dc.subjectcommunityen-US
dc.subjectreef benthic faunaen-US
dc.subjectcoexistenceen-US
dc.subjectbiotic factoren-US
dc.subjectabiotic factoren-US
dc.titleCoexistence of reef organisms in the Abrolhos Archipelago, Brazilen-US
dc.typeartículo original

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